PIC18F2458 Datasheet, PDF (7/46 Pages) Microchip Technology – 28/40/44-Pin High-Performance, Enhanced Flash, USB Microcontrollers with 12-Bit A/D and nanoWatt Technology

PIC18F2458/2553/4458/4553
1.0 DEVICE OVERVIEW
This document contains device-specific information for
the following devices:
• PIC18F2458
• PIC18F2553
• PIC18F4458
• PIC18F4553
Note:
This data sheet documents only the
devices’ features and specifications that are
in addition to the features and specifica-
tions of the PIC18F2455/2550/4455/4550
devices. For information on the features
and specifications shared by
the PIC18F2458/2553/4458/4553 and
PIC18F2455/2550/4455/4550 devices,
see the “PIC18F2455/2550/4455/4550
Data Sheet” (DS39632).
The PIC18F4553 family of devices offers the advan-
tages of all PIC18 microcontrollers – namely, high
computational performance at an economical price –
with the addition of high-endurance, Enhanced Flash
program memory. In addition to these features, the
PIC18F4553 family introduces design enhancements
that make these microcontrollers a logical choice for
many high-performance, power sensitive applications.
1.1 Special Features
• 12-Bit A/D Converter: The PIC18F4553 family
implements a 12-bit A/D Converter. The A/D
Converter incorporates programmable acquisi-
tion time. This allows for a channel to be selected
and a conversion to be initiated, without waiting
for a sampling period and thus, reducing code
overhead.
1.2 Details on Individual Family
Members
The PIC18F2458/2553/4458/4553 devices are
available in 28-pin and 40/44-pin packages. Block
diagrams for the two groups are shown in Figure 1-1
and Figure 1-2.
The devices are differentiated from each other in the
following ways:
1. Flash program memory (24 Kbytes for
PIC18FX458 devices, 32 Kbytes for
PIC18FX553).
2. A/D channels (10 for 28-pin devices, 13 for
40-pin and 44-pin devices).
3. I/O ports (3 bidirectional ports and 1 input only
port on 28-pin devices, 5 bidirectional ports on
40-pin and 44-pin devices).
4. CCP and Enhanced CCP implementation
(28-pin devices have two standard CCP
modules, 40-pin and 44-pin devices have one
standard CCP module and one ECCP module).
5. Streaming Parallel Port (present only on
40/44-pin devices).
All other features for devices in this family are identical.
These are summarized in Table 1-1.
The pinouts for all devices are listed in Table 1-2 and
Table 1-3.
Members of the PIC18F4553 family are available as
both standard and low-voltage devices. Standard
devices with Enhanced Flash memory, designated with
an “F” in the part number (such as PIC18F2458),
accommodate an operating VDD range of 4.2V to 5.5V.
Low-voltage parts, designated by “LF” (such as
PIC18LF2458), function over an extended VDD range
of 2.0V to 5.5V.
© 2007 Microchip Technology Inc.
Preliminary
DS39887B-page 5